GB8615817D0 - Detecting presence/absence of liquid - Google Patents

Detecting presence/absence of liquid

Info

Publication number
GB8615817D0
GB8615817D0 GB868615817A GB8615817A GB8615817D0 GB 8615817 D0 GB8615817 D0 GB 8615817D0 GB 868615817 A GB868615817 A GB 868615817A GB 8615817 A GB8615817 A GB 8615817A GB 8615817 D0 GB8615817 D0 GB 8615817D0
Authority
GB
United Kingdom
Prior art keywords
absence
liquid
detecting presence
detecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB868615817A
Other versions
GB2177510A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Partridge Wilson & Co Ltd
Original Assignee
Partridge Wilson & Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB858516598A external-priority patent/GB8516598D0/en
Application filed by Partridge Wilson & Co Ltd filed Critical Partridge Wilson & Co Ltd
Priority to GB08615817A priority Critical patent/GB2177510A/en
Publication of GB8615817D0 publication Critical patent/GB8615817D0/en
Publication of GB2177510A publication Critical patent/GB2177510A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2965—Measuring attenuation of transmitted waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2961—Acoustic waves for discrete levels

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
GB08615817A 1985-07-01 1986-06-27 Detecting the presence or absence of a liquid Withdrawn GB2177510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08615817A GB2177510A (en) 1985-07-01 1986-06-27 Detecting the presence or absence of a liquid

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB858516598A GB8516598D0 (en) 1985-07-01 1985-07-01 Pumping liquid
GB858523677A GB8523677D0 (en) 1985-07-01 1985-09-25 Detecting presence/absence of liquid
GB08615817A GB2177510A (en) 1985-07-01 1986-06-27 Detecting the presence or absence of a liquid

Publications (2)

Publication Number Publication Date
GB8615817D0 true GB8615817D0 (en) 1986-08-06
GB2177510A GB2177510A (en) 1987-01-21

Family

ID=27262720

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08615817A Withdrawn GB2177510A (en) 1985-07-01 1986-06-27 Detecting the presence or absence of a liquid

Country Status (1)

Country Link
GB (1) GB2177510A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8520793D0 (en) * 1985-08-20 1985-09-25 Formula Systems Ltd Liquid level responsive apparatus
US4846003A (en) * 1988-06-08 1989-07-11 Beckman Instruments, Inc. Acoustic impedance system for pipette tip detection
JPH04118525A (en) * 1989-12-28 1992-04-20 Kureha Chem Ind Co Ltd Detecting method for liquid level in moving cylindrical body
US5062295A (en) * 1990-12-24 1991-11-05 Sparktech Dual tube sonic level gage
CA2136630A1 (en) * 1992-06-08 1993-12-23 John E. Waylet, Jr. Liquid dispensing system
GB2267891A (en) * 1992-06-19 1993-12-22 Imi Cornelius Controlling beverage dispense according to water supply
US5841028A (en) * 1996-05-02 1998-11-24 Chiron Corporation Automated liquid-level vessel apparatus
FR2871441B1 (en) * 2004-06-10 2006-09-15 Eads Astrium Sas Soc Par Actio METHODS OF DETECTING COMPLETE DRAINAGE OF ERGOL RESERVOIR AND ERGOL MANAGEMENT ABOARD A SATELLITE
DE102006012993A1 (en) * 2006-03-22 2007-09-27 Mib Gmbh Messtechnik Und Industrieberatung Empty pipe detection
CN102322920A (en) * 2011-08-24 2012-01-18 四川大学 Method for measuring existence of powdery materials in specific material position of container and implementation material level switch thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB813497A (en) * 1957-01-22 1959-05-21 Bailey Meters Controls Ltd Improvements in apparatus for detecting the presence or absence at a location of a body of fluid
GB1418181A (en) * 1973-02-27 1975-12-17 Cole E M Ultrasonic detection of inclusions in a fluid flowing within a tube
JPS582620B2 (en) * 1976-05-21 1983-01-18 富士写真フイルム株式会社 Bubble detection method and device
US4068521A (en) * 1976-07-22 1978-01-17 Renal Systems, Inc. Ultrasonic air and blood foam detector
US4063457A (en) * 1976-09-27 1977-12-20 Envirotech Corporation Ultrasonic level sensing device
GB1578031A (en) * 1977-03-18 1980-10-29 Ici Ltd Method and apparatus for testing liquids
GB2028502B (en) * 1978-08-19 1982-11-10 Tif Instr Inc Detecting inhomogeneities in a fluid
DE2850238A1 (en) * 1978-11-20 1980-05-22 Schloemann Siemag Ag CONTROL COLUMN FOR DETECTING LEVELS IN PRESSURE LIQUID TANKS OF PRESSURE STORAGE SYSTEMS

Also Published As

Publication number Publication date
GB2177510A (en) 1987-01-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)